--- Why does the lake smell terrible?--- Because large quantities of water _________.
#101273
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
It was the first time that I ___________ the night face to face.
#101477
A
had seen
B
have seen
C
see
D
seeing
The girl told me that she ＿＿＿ beaten and she ＿＿＿telephone the police.
#101856
A
was; would
B
has been; will
C
had been; would
D
had been; will
By the end of last year, another new theme park _______ completed in that area.
#103037
A
was being
B
would be
C
has been
D
had been
So far this year we ______ a fall in house prices by between 5 percent and 10 percent.
#102338
A
saw
B
see
C
had seen
D
have seen